アゲートウェア
「アゲートウェア」は、異なる色の粘土を組み合わせて混ぜ合わせ、天然の瑪瑙（メノウ）のようなマーブル模様を作り出す陶磁器の装飾技法です。この模様は、表面に施されるのではなく、粘土の素地そのものの中に形成されます。
In this technique, potters prepare clay bodies tinted with different mineral pigments or natural clay colors. These clays are layered, twisted, folded, or lightly blended together before the clay is shaped into vessels or other objects. When the clay is cut, stretched, or thrown on the wheel, the internal patterns become visible on the surface.
The resulting marbled designs may resemble flowing bands, swirls, or irregular streaks of color. Because the pattern extends throughout the clay body, the decorative effect remains visible even after trimming or shaping.
Agateware techniques have been used in several ceramic traditions and became particularly well known in European ceramics during the 18th century. Similar patterned-clay methods also appear in other ceramic traditions and are conceptually related to techniques such as Nerikomi.
After shaping, agateware pieces are typically finished with a transparent glaze that highlights the natural marbled patterns of the clay.
